Smogon University - Because of its monstrous Defense stat, helpful ability, and great defensive typing, Mega Aggron is one of the best walls in UU. Mega Aggron fits nicely as a Stealth
Who will win a battle between Aggron and Tyranitar (don't consider trainers just based on their stats)? - Quora
![Mega Aggron raid guide. Top general non shadow (mostly) counters via pokebattler.com : r/TheSilphRoad Mega Aggron raid guide. Top general non shadow (mostly) counters via pokebattler.com : r/TheSilphRoad](https://storage.googleapis.com/static.pokebattler.com/CaptGoldfish/Mega_Aggron_Raid_Guide2.jpg)